How to use this tool
- 1Tap 'Start microphone test' and allow access when the browser asks.
- 2Speak, whistle or clap near the phone.
- 3The waveform and level bar should react instantly.
- 4Test speaking quietly and loudly to see the level change.
- 5Tap 'Stop' when finished.
About this test
The microphone turns sound into an electric signal. This test shows that signal as a live waveform plus a level bar, so you can confirm the mic picks up sound and how strongly.
Phones have more than one microphone (main for calls, secondary for noise cancellation). If your voice sounds low on calls but this test works, the issue may be a specific mic or dirt blocking the mic hole.
Privacy: this tool runs entirely in your browser. No image, audio or device data is recorded or sent to any server.
Frequently asked questions
Is my audio recorded or uploaded?
No. Everything is processed in your browser in real time. Nothing is recorded, stored or sent to servers.
The waveform doesn't move, what should I do?
Confirm you granted microphone permission, that no other app is using the mic, and that the mic hole isn't blocked by a case or dirt.